Car insurance - You could be invalidating YOUR insurance by making THIS simple error BRITISH motorists could be invalidating their car insurance by making a simple mistake and failing to declare any modifications they have made to their vehicle. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Simple car finance trick you need to know which could save you £500 a yearElectric car myths busted - Things you’ve been getting wrong about EVsCar insurance WARNING - Adding these things to your car could cost you £100 moreSUV driver WARNING - These cars can cost you over £409 more a year to own, here's whyMillions motorists would back ban on drivers over 60 from the road in BritonNew electric car charging stations to deliver 300 miles range in fifteen minutes